Joining of Cf-SiC composites and ZrB 2 -SiC based composites for ultra high temperature applications

Krishnarao, R. V.; Reddy, G. Madhusudhan

doi:10.1016/j.ceramint.2018.03.080

Cited by 8 publications

(2 citation statements)

References 30 publications

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“…In addition to matrix phase, it is used as a sintering agent for some ceramic matrices. To our best knowledge, YAG has been formed during the sintering of ZrB 2 based ceramics using Y 2 O 3 and Al 2 O 3 addition in the system [16,21,22]. However, the formation of a single phase YAG with Y 2 O 3 -Al 2 O 3 system is difficult in the high pressure and temperature assisted sintering techniques like SPS, HP.…”

Section: Introductionmentioning

confidence: 99%

Effect of Y3Al5O12 addition on the microstructural evaluation and mechanical properties of spark plasma sintered ZrB2-SiC composites

et al. 2022

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In the present study, the addition of Y3Al5O12 (YAG) into the ZrB2-SiC composites was investigated. Composites were densified by spark plasma sintering (SPS) at 1850?C under a uniaxial pressure of 50 MPa for 20 min. Microstructural evaluation and mechanical properties were evaluated with a various content of YAG (1-5 wt%). Obtained results showed that sintering mechanism changed from solid state to liquid phase sintering with incorporation of YAG. The highest density (99.81 % RD) and fracture toughness (6.44 ? 0.23 MPa.m1/2) were obtained for the composite containing 5 wt% YAG after the SPS process. Although hardness and elastic modulus of samples were decreased with the increasing of YAG amount, measured values were comparable with the literature.

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Section: Introductionmentioning

confidence: 99%

Effect of Y3Al5O12 addition on the microstructural evaluation and mechanical properties of spark plasma sintered ZrB2-SiC composites

et al. 2022

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show abstract

“…In addition to matrix phase, it is used as a sintering agent for some ceramic matrices. To our best knowledge, YAG has been formed during the sintering of ZrB2 based ceramics using Y2O3 and Al2O3 addition in the system [16,21,22]. However, formation of a single phase YAG with Y2O3-Al2O3 system is difficult in the high pressure and temperature assisted sintering techniques like SPS, HP.…”

Section: Introductionmentioning

confidence: 99%

Effect of Y3Al5O12 Addition on The Microstructural Evaluation And Mechanical Properties of Spark Plasma Sintered ZrB2-SiC Composites

Gürcan¹,

Ayas²,

Yurdabak³

et al. 2020

Preprint

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The addition of Y3Al5O12 (YAG) into the ZrB2-SiC composites was investigated in the present research. Composites were densified by SPS method at 1850ºC under a uniaxial pressure of 50 MPa for 20 min. Microstructural evaluation and mechanical properties were evaluated with a various content of YAG (1-5 wt%). The microstructural and phase analysis showed that incorporation of YAG promoted the densification process from the solid-state sintering to liquid phase sintering. The highest density (99.81% RD) and fracture toughness (6,44 ± 0.23 MPa.m1/2) were obtained for the composite containing 5 wt % YAG after the SPS process. Although hardness and elastic modulus of samples were decreased with the increasing of YAG amount, measured values were comparable with the literature.

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An insight to wetting and joining of HfB2 and ZrB2 based ultra high temperature ceramics: A review

Bajpai,

Dubey,

Venkateswaran

et al. 2024

Chemical Engineering Journal

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Joining of Cf-SiC composites and ZrB 2 -SiC based composites for ultra high temperature applications

Cited by 8 publications

References 30 publications

Effect of Y3Al5O12 addition on the microstructural evaluation and mechanical properties of spark plasma sintered ZrB2-SiC composites

Effect of Y3Al5O12 addition on the microstructural evaluation and mechanical properties of spark plasma sintered ZrB2-SiC composites

Effect of Y3Al5O12 Addition on The Microstructural Evaluation And Mechanical Properties of Spark Plasma Sintered ZrB2-SiC Composites

An insight to wetting and joining of HfB2 and ZrB2 based ultra high temperature ceramics: A review

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